3 5mm AUX Cable Switcher 4 Input 1 Output AUX 1 8 Source Stereo Splitter Audio Selector Box Signal Switch with Volume Control for Home Audio

Features: 4-IN 1-OUT (switch audio sources input) 1-IN 4-OUT (switch audio outputs) (1) Switch different input or output conveniently (2) No need power supply, plug and play directly (3) Circuit design does not affect sound quality (4) Made of FR4 PCB circuit board (4) Mini size compact audio splitter for home audio Applications: Connect sockets are AUX 1/8" (3.5mm) Input connections: Computer / Phone / Music player. etc. Output connections: Active speaker / Headphone amp / Power Amplifier. etc. Use instruction: Left knob on top: for switch/select signal way Right knob on top: turn it for change volume